Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 580 · 40 questions

What you do (Choose the right way): 1. Put cotton or cloth in the funnel, then layers of sand and small pebbles. 2. Stand the funnel in a clean glass. 3. Pour muddy water in slowly and watch what drips out. 4. Compare the colour before and after — never drink it — and wash your hands.

1. 1.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same glass”? (a) we change it (b) we keep it the same (c) we measure it
2. 2.🫗 Which of these is done by filtering? (a) small stones from dal (b) mud from water (c) chaff from wheat grain (d) sugar from sugar water
3. 3.🫗 Why does filtered muddy water look clearer? (a) the filter traps mud (b) the water evaporates (c) the mud dissolves (d) the filter adds soap
4. 4.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same funnel”? (a) we keep it the same (b) we measure it (c) we change it
5. 5.🧺 Which of these is needed for the muddy water filter? (a) a balloon (b) a mirror (c) a battery cell (d) a funnel
6. 6.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is the one thing we change? (a) the same funnel (b) the filter material (c) the same muddy water (d) the same glass
7. 7.🧺 Do we need a magnet for the muddy water filter? (a) needed (b) not needed
8. 8.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a clean glass (b) a mirror (c) a funnel (d) sand and pebbles
9. 9.True or false: sugar from sugar water is done by filtering. (a) True (b) False
10. 10.🧺 Which of these is not needed for the muddy water filter? (a) cotton or cloth (b) yeast (c) sand and pebbles (d) a funnel
11. 11.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the amount poured”? (a) we change it (b) we keep it the same (c) we measure it
12. 12.🫗 Which of these is done by sieving? (a) bran from wheat flour (b) small stones from dal (c) sugar from sugar water (d) husk from rice grain
13. 13.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) no, salt passes through (b) it turns to sand (c) it turns to sugar (d) yes, all of it
14. 14.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the filter material”? (a) we measure it (b) we keep it the same (c) we change it
15. 15.🧺 Do we need turmeric powder for the muddy water filter? (a) needed (b) not needed
16. 16.🫗 Which of these is done by sieving? (a) sugar from sugar water (b) salt from sea water (c) gravel from fine sand (d) bad grains from rice
17. 17.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) leaves pass through (b) tea stays behind (c) both stay behind (d) leaves stay behind
18. 18.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) cotton or cloth (b) a funnel (c) a balloon (d) sand and pebbles
19. 19.🫗 How do we separate small stones from dal? (a) evaporating (b) winnowing (c) handpicking (d) sieving
20. 20.🧺 Do we need a clean glass for the muddy water filter? (a) not needed (b) needed
21. 21.🧺 Which of these is not needed for the muddy water filter? (a) a clean glass (b) a balloon (c) muddy water (d) cotton or cloth
22. 22.True or false: cotton or cloth is not needed for the muddy water filter. (a) True (b) False
23. 23.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same glass is kept the same. (a) True (b) False
24. 24.True or false: a balloon is needed for the muddy water filter. (a) True (b) False
25. 25.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same muddy water”? (a) we measure it (b) we change it (c) we keep it the same
26. 26.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) nothing (b) the mud (c) the water (d) the salt
27. 27.🛟 Why should you never drink water just because it looks clear? (a) clear water is hot (b) clear water is sweet (c) germs are invisible (d) clear water is salty
28. 28.True or false: a mirror is not needed for the muddy water filter. (a) True (b) False
29. 29.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it floats on top (b) it dissolves (c) it turns to sand (d) it sinks to the bottom
30. 30.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is what we measure? (a) the same funnel (b) the amount poured (c) how clear the water is (d) the filter material
31. 31.🫗 How do we separate husk from rice grain? (a) sieving (b) handpicking (c) winnowing (d) filtering
32. 32.🧺 Do we need a funnel for the muddy water filter? (a) not needed (b) needed
33. 33.🧺 Do we need a mirror for the muddy water filter? (a) not needed (b) needed
34. 34.🫗 Is filtered pond water safe to drink? (a) yes, always (b) yes, if it is cold (c) yes, if it is clear (d) no, germs may stay
35. 35.True or false: muddy water is not needed for the muddy water filter. (a) False (b) True
36. 36.🧺 Do we need sand and pebbles for the muddy water filter? (a) needed (b) not needed
37. 37.True or false: mud from water is done by winnowing. (a) False (b) True
38. 38.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) sand and pebbles (b) a funnel (c) muddy water (d) a battery cell
39. 39.🧺 Do we need muddy water for the muddy water filter? (a) not needed (b) needed
40. 40.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) a funnel (c) cotton or cloth (d) a magnet

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